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TO WHOM IT MAY CONCERN:

Be it known that I, O. B. EVANS, of the city of Buffalo, and State ofNew York, have made new and useful improvements in the Process ofTanning Hides; and I do hereby declare the following to be a full andexact description of the same.

in or aboutthc proportion described, substantially as and for thepurposes set forth.

The object of'my invention is to provide a. simple and expeditious modeof tanning skins or hides of all kinds, and to accomplish that object Imake use of the following-named solutions, viz:

Solution No. 1: Four quartsof tepid soft water, thirteen ounces of salt,one ounce of borax, one and a half ounce of saltpetre, two ounces No. 8acetic acid, three ounces nitric acid.

Solution No. 2: Four quarts of soft water, eight ounces of pulverizednut-galls. Steep two hours in a clean tin vessel, cool, and strain it.It is then ready for use. i

Solution No. 3: Four quarts strong decoction of'boneset, one-half poundmelted catechu, one-half pound extract of' oak or hemlock.

The following is my process for tanning light hides, viz After the hidesare fleshed and thoroughly cleansed from all oily substances, immersethem in solution No. 1. Let the hides remain in this solution one hour,then drain over the tub or vat one-half hour, then immerse in solutionNo. 2. Let the hides remain in this solution one hour, then draw themand let drain one-half hour. After this return the hides to solutionNo. 1. Alternate five or six times between the two solutions, so as tomake the time occupied in tanning ten or. twelve hours, then rinse thehides and hang them in the shade to dry. J

Heavy hides I manage as follows, viz After soaking, hairing, and beatingin the usual manner, Iirnmerse the hides one day in solution No. 1, thendraw the hides, and let them drain one-half day. Then immerse them insolution No. 3, lettingthem remain in this two days; then draw and letthem drain over the tub or vat onehalf day. Return them again tosolution No. 1, letting them remain oneday. Alternate in this way.between the two so as to give the time in tanning from six to twentydays, according to the thickness and tenacity of the hides. After theyare fully tanned they may be curried and finished in the ordinarymanner.

What'I claim, and desire to secure by Letters Patent, is-- Compounds orsolutions for tanning hides and skins composed of the ingredientsspecified, mixed together 0. B. EVANS. I

Witnesses:

C. W. SHORT, Jenn G. SIMMONS.

